The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 2020
Filed:
Mar. 22, 2019
Avago Technologies International Sales Pte. Limited, Singapore, SG;
Hemasundar Mohan Geddada, Irvine, CA (US);
Chun-Ying Chen, Irvine, CA (US);
Mo Maggie Zhang, Irvine, CA (US);
Zen-Che Lo, Irvine, CA (US);
Massimo Brandolini, Irvine, CA (US);
Pin-En Su, Irvine, CA (US);
Acer Chou, Irvine, CA (US);
Avago Technologies International Sales Pte. Limited, Singapore, SG;
Abstract
A method and apparatus for calibrating a CDAC-based analog-to-digital converter is disclosed. In one aspect, a calibration method includes: applying a predetermined pattern of voltages to first plates of a group of N capacitors, wherein N is an integer greater than 1; applying a zero voltage to the second plates of the group of N capacitors, wherein the second plates of the group of N capacitors are connected in common; removing the zero voltage to the second plates of the group of N capacitors; applying a zero voltage to all of the first plates of the group of N capacitors; quantizing a voltage on the second plates of the group of N capacitors; converting the quantized voltage on the second plates of the group of N capacitors to an adjustment value; and loading the adjustment value into a lookup table.